SAP ABAP Program RCS15021 (Single-Level Class Where-Used List) is using

• Table/Structure Field (121)
• Function Module (11)
• Message Class (1)
• Message Number (9)
• Program (3)
• Table (15)
• Transaction Code (3)

#	Object Type	Object Name	Object Description	Note
1	Transaction Code	CS15	Single-Level Where-Used List
2	Transaction Code	CSC5	Single-Level Class Where-Used List
3	Transaction Code	CSD5	Single-Level Doc. Where-Used List